Human cones can detect 3 colors ... night vision even more and is why dogs' eyes shine in the dark. Turns out, dogs' eyes see much more than just black and white. Consider that the next time ...
Dogs can see certain colors, but they see the world ... like being able to see more clearly in the dark. Here's how dogs see color, and some other fun facts about dogs' vision.
一些您可能无法访问的结果已被隐去。
显示无法访问的结果